Would you run this disk cleanup script?

Situation

A production PostgreSQL node is running low on disk space.

Environment

Production database host with shared /tmp and multi-service /var/log.

Select suspicious lines in the terminal to flag them before submitting your verdict.

pending review

#!/bin/bash
set -euo pipefail
THRESHOLD=90
USAGE=$(df /var/lib/postgresql | awk 'NR==2 {print $5}' | tr -d '%')
if [ "$USAGE" -gt "$THRESHOLD" ]; then
    find /var/lib/postgresql/data/pg_wal -name '*.backup' -mtime +1 -delete
    find /var/lib/postgresql/data/log -name '*.csv' -mtime +3 -delete
    find /var/log /tmp -type f -atime +7 -delete
fi